package cc.linker.steplink.crm.merchanth5.dao;

import java.util.List;
import java.util.Map;

public interface CourseDao {
    List<Map<String, Object>> myColumns(Map<String, Object> params);

    List<Map<String, Object>> myContent(Map<String, Object> params);

    Integer getNumByCourseId(String columnId);
}
